n.
Pronunciation: ' sen- ˌ tro ̇ id
Function: noun
Date: 1882
1 : CENTER OF MASS
2 : a point whose coordinates are the averages of the corresponding coordinates of a given set of points and which for a given plane or three-dimensional figure (as a triangle or sphere) corresponds to the center of mass of a thin plate of uniform thickness and consistency or a body of uniform consistency having the same boundary